remove python 2 style codes

djadmin2/actions.py

@@ -49,7 +49,7 @@ class BaseListAction(Admin2ModelMixin, TemplateView):
             objects_name = options.verbose_name_plural
         self.objects_name = force_str(objects_name)
 
-        super(BaseListAction, self).__init__(*args, **kwargs)
+        super().__init__(*args, **kwargs)
 
     def get_queryset(self):
         """ Replaced `get_queryset` from `Admin2ModelMixin`"""
@@ -85,7 +85,7 @@ class BaseListAction(Admin2ModelMixin, TemplateView):
         """ Utility method when you want to display nested objects
             (such as during a bulk update/delete)
         """
-        context = super(BaseListAction, self).get_context_data()
+        context = super().get_context_data()
 
         def _format_callback(obj):
             opts = utils.model_options(obj)
@@ -108,7 +108,7 @@ class BaseListAction(Admin2ModelMixin, TemplateView):
 
     def get(self, request):
         if self.item_count > 0:
-            return super(BaseListAction, self).get(request)
+            return super().get(request)
 
         message = _(self.empty_message)
         messages.add_message(request, messages.INFO, message)
@@ -160,7 +160,7 @@ class DeleteSelectedAction(BaseListAction):
 
     def post(self, request):
         if request.POST.get('confirmed'):
-            super(DeleteSelectedAction, self).post(request)
+            super().post(request)
         else:
             # The user has not confirmed that they want to delete the
             # objects, so render a template asking for their confirmation.

djadmin2/apiviews.py

@@ -17,7 +17,7 @@ class Admin2APISerializer(serializers.HyperlinkedModelSerializer):
     __unicode__ = fields.ReadOnlyField(source='__str__')
 
     def get_extra_kwargs(self):
-        extra_kwargs = super(Admin2APISerializer, self).get_extra_kwargs()
+        extra_kwargs = super().get_extra_kwargs()
         extra_kwargs.update({
             'url': {'view_name': self._get_default_view_name(self.Meta.model)}
         })
@@ -56,7 +56,7 @@ class Admin2APIMixin(Admin2Mixin):
                     fields = '__all__'
 
             return ModelAPISerilizer
-        return super(Admin2APIMixin, self).get_serializer_class()
+        return super().get_serializer_class()
 
 
 class IndexAPIView(Admin2APIMixin, APIView):

djadmin2/core.py

@@ -14,7 +14,7 @@ from . import utils
 from . import views
 
 
-class Admin2(object):
+class Admin2:
     """
     The base Admin2 object.
     It keeps a registry of all registered Models and collects the urls of their
@@ -137,7 +137,7 @@ class Admin2(object):
         for object_admin in self.registry.values():
             if object_admin.name == name:
                 return object_admin
-        raise ValueError(u"No object admin found with name {}".format(repr(name)))
+        raise ValueError("No object admin found with name {}".format(repr(name)))
 
     def get_index_kwargs(self):
         return {

djadmin2/tests/test_actions.py

@@ -5,7 +5,7 @@ from ..actions import get_description
 from .models import Thing
 
 
-class TestAction(object):
+class TestAction:
     description = "Test Action Class"
 
 

djadmin2/tests/test_admin2tags.py

@@ -73,12 +73,12 @@ class TagsTests(TestCase):
         formset = TagsTestFormSet()
         self.assertEqual(
             admin2_tags.formset_visible_fieldlist(formset),
-            [u'Visible 1', u'Visible 2']
+            ['Visible 1', 'Visible 2']
         )
 
     def test_verbose_name_for(self):
         app_verbose_names = {
-            u'app_one_label': 'App One Verbose Name',
+            'app_one_label': 'App One Verbose Name',
         }
         self.assertEqual(
             "App One Verbose Name",

djadmin2/tests/test_types.py

@@ -6,7 +6,7 @@ from ..core import Admin2
 from .models import BigThing
 
 
-class ModelAdmin(object):
+class ModelAdmin:
     model_admin_attributes = ['a', 'b', 'c']
     a = 1  # covered
     b = 2  # covered
@@ -73,7 +73,7 @@ class ModelAdminTest(TestCase):
                 admin_instance.get_urls()
 
             except TypeError as e:
-                message = u"Cannot instantiate admin view " \
+                message = "Cannot instantiate admin view " \
                     '"ModelAdmin2.None". The error that got raised was: ' \
                     "'NoneType' object has no attribute 'as_view'"
                 self.assertEqual(e.args[0], message)

djadmin2/tests/test_utils.py

@@ -119,7 +119,7 @@ class UtilsTest(TestCase):
         )
 
     def test_get_attr_callable(self):
-        class Klass(object):
+        class Klass:
             def hello(self):
                 return "hello"
 
@@ -129,7 +129,7 @@ class UtilsTest(TestCase):
         )
 
     def test_get_attr_str(self):
-        class Klass(object):
+        class Klass:
             def __str__(self):
                 return "str"
 
@@ -142,7 +142,7 @@ class UtilsTest(TestCase):
         )
 
     def test_get_attr(self):
-        class Klass(object):
+        class Klass:
             attr = "value"
 
         self.assertEqual(